Method and apparatus for measuring the expansion of a mat of fib

Details Method and apparatus for measuring the expansion of a mat of fib Method and apparatus for measuring the expansion of a mat of fib

1980-06-30

1982-07-06

Martin, Jr., William D.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

33172E, G01N 1900

Patent

active

043376665

ABSTRACT:
A method and apparatus for measuring the expansion of a mat of fibrous material in which a contact plate is periodically moved vertically into and out of contact with the surface of a mat of fibrous material, contact between the contact plate and the surface of the mat is sensed, and the position of the contact plate is recorded responsive to the occurrence of contact between the contact plate and the surface of the mat.

REFERENCES:
patent: 2154561 (1939-04-01), Breer et al.
patent: 2703492 (1955-03-01), Brissette et al.
patent: 2913899 (1959-11-01), Wohler
patent: 3334517 (1967-08-01), Janapol
patent: 4140008 (1979-02-01), Golembeck et al.

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